MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. Heuristics identified it as a link farm on compromised WordPress sites, with numerous distinct hosts and URLs pointing to PDF files. The embedded URLs suggest a phishing or malware distribution attempt, likely using the document as a lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9922
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://brusroom.com/wp-content/plugins/super-forms/uploads/php/files/f3fc6aee7ef930577ce1ea364b19968f/91401660086.pdf In PDF document text
- https://vashadvokat82.ru/wp-content/plugins/super-forms/uploads/php/files/f01d16088e988ea161cbe242215e0ea0/bapez.pdfIn PDF document text
- http://www.timtransportes.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/1606e6e355e008---75950997685.pdfIn PDF document text
- https://www.northamericatalk.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609831d2f0a05---dokenekukefi.pdfIn PDF document text
- http://deurwater.com/wp-content/plugins/formcraft/file-upload/server/content/files/160911f5260e45---muvividemuzobu.pdfIn PDF document text
- https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/f592ad5fc4362dd13b9455023f782534/tariwibuwenubud.pdfIn PDF document text
- https://wurstfargo.com/wp-content/plugins/super-forms/uploads/php/files/c0b3f890ccfdee475bceb3c03280a0bd/waratolilidujawer.pdfIn PDF document text
- http://www.onlinetemsilci.com/wp-content/plugins/formcraft/file-upload/server/content/files/160702cb974bd2---tebibekonujageretakape.pdfIn PDF document text
- https://ailani.org/wp-content/plugins/super-forms/uploads/php/files/1b3d4ee8f4c5bd7d29627fc6b03e1da9/midedirogedu.pdfIn PDF document text
- https://www.travelticket.com.au/wp-content/plugins/super-forms/uploads/php/files/e5k25hchndmsjjc0g7u9a5no04/95661313580.pdfIn PDF document text
- http://ipjanah.ir/wp-content/plugins/super-forms/uploads/php/files/67tnc3lknae5mpkppvsggids96/70466078565.pdfIn PDF document text
- http://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/160aa34cf37d89---45347690454.pdfIn PDF document text
- https://dungcuruamui.com/wp-content/plugins/super-forms/uploads/php/files/dv7b17nhd30rppn7307t0o0tsk/42416858525.pdfIn PDF document text
- https://postscriptproductions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160af71163fd32---61772353064.pdfIn PDF document text
- http://bukharajohnscreek.com/sites/default/files/file/dabanaxazobumilabonum.pdfIn PDF document text
- https://unicornccc.com/ckfinder/userfiles/files/janirewowedij.pdfIn PDF document text
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16079ce902339f---givagajotujugebovifiresoz.pdfIn PDF document text
- http://eaas-journal.org/survey/userfiles/files/67047798951.pdfIn PDF document text
- http://ganan10.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/1606cb6172e98a---36061047035.pdfIn PDF document text
- https://www.cr-sdc.org/wp-content/plugins/super-forms/uploads/php/files/a88aae7b19328e26341f7ed19d5834ef/43607470567.pdfIn PDF document text
- http://www.jobsincrete.gr/images/_user_na/file/51994070627.pdfIn PDF document text
- http://curry-box-deluxe.de/userfiles/file/megagetubebalugidoba.pdfIn PDF document text
- https://ecobox.eng.br/wp-content/plugins/super-forms/uploads/php/files/mmn3c19r4ag3u6nv0aanagp2c4/41156679782.pdfIn PDF document text
- https://www.cir.cloud/wp-content/plugins/formcraft/file-upload/server/content/files/160bc76fd5e7f0---71083789432.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=bewildered+meaning+in+gujaratiPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c8e4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC8E4 | 18660 bytes |
SHA-256: 8b0d48d126c5cb92bbafa1d19a813947e9111b11bd0932e59123a55815881520 |
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font_01_sfnt_off0000f97e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF97E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011195.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11195 | 10672 bytes |
SHA-256: 763704f022ae6549982b06bd2a64ac93a0f13e1d9e56db8d3971ab1a3f4bd636 |
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font_03_sfnt_off000129c5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x129C5 | 17228 bytes |
SHA-256: 47e8562391740b40642251c6926f2b31a0199911f564c3159dd874033d7ad583 |
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